<template>
  <div class="building-container">
    <!-- 搜索区域 -->
    <div class="search-container">
      <div class="search-label">企业名称：</div>
      <el-input v-model="params.name" clearable placeholder="请输入内容" class="search-main" @clear="doSearch" />
      <el-button type="primary" @click="doSearch">查询</el-button>
    </div>

    <div class="create-container">
      <el-button type="primary" @click="$router.push('/exterpriseAdd')">添加企业</el-button>
    </div>

    <!-- 表格区域 -->
    <div class="table">
      <el-table ref="table" style="width: 100%" :data="exterpriseList" @expand-change="expandHandle">
        <!-- 展开列 -->
        <el-table-column type="expand">
          <template #default="{ row }">
            <el-table :data="row.rentList">
              <el-table-column label="租赁楼宇" width="320" prop="buildingName" />
              <el-table-column label="租赁起始时间" prop="startTime" />
              <el-table-column label="合同状态" prop="status">
                <template #default="scope">
                  <el-tag :type="formatInfoType(scope.row.status)">
                    {{ formatStatus(scope.row.status) }}
                  </el-tag>
                </template>
              </el-table-column>
              <el-table-column label="操作" width="180">
                <template #default="scope">
                  <el-button size="mini" type="text">续租</el-button>
                  <el-button size="mini" type="text" :disabled="scope.row.status === 3"
                    @click="outRent(scope.row.id)">退租</el-button>
                  <el-button size="mini" type="text" :disabled="scope.row.status !== 3" @click="delRent(scope.row.id)">
                    删除
                  </el-button>
                </template>
              </el-table-column>
            </el-table>
          </template>
        </el-table-column>
        <!-- 详情列 -->
        <el-table-column type="index" label="序号" />
        <el-table-column label="企业名称" width="320" prop="name" />
        <el-table-column label="联系人" prop="contact" />
        <el-table-column label="联系电话" prop="contactNumber" />
        <el-table-column label="操作">
        <template #default="scope">
            <el-button size="mini" type="text" @click="addRent(scope.row.id)">添加合同</el-button>
            <el-button size="mini" type="text" @click="$router.push({path:'/exterpriseDetail',query:{id:scope.row.id}})">
              查看
            </el-button>
            <el-button size="mini" type="text" @click="editRent(scope.row.id)">编辑</el-button>
            <el-button size="mini" type="text" @click="delExterprise(scope.row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 创建合同弹窗 -->
      <el-dialog title="添加合同" :visible="rentDialogVisible" width="580px" @close="closeDialog">
        <!-- 表单区域 -->
        <div class="form-container">
          <el-form ref="addForm" :model="rentForm" :rules="rentRules" label-position="top">
            <el-form-item label="租赁楼宇" prop="buildingId">
              <el-select v-model="rentForm.buildingId" placeholder="请选择">
                <el-option v-for="item in buildList" :key="item.id" :label="item.name" :value="item.id" />
              </el-select>
            </el-form-item>

            <el-form-item label="租赁起止日期" prop="rentTime">
              <el-date-picker v-model="rentForm.rentTime" type="daterange" range-separator="至" start-placeholder="开始日期"
                end-placeholder="结束日期" value-format="yyyy-MM-dd" />
            </el-form-item>

            <el-form-item label="租赁合同" prop="contractId">
              <el-upload action="#" :http-request="uploadHandle">
                <el-button size="small" type="primary" plain>上传合同文件</el-button>
                <div slot="tip" class="el-upload__tip">支持扩展名：.doc .docx .pdf, 文件大小不超过5M</div>
              </el-upload>
            </el-form-item>
          </el-form>
        </div>
        <template #footer>
          <el-button size="mini" @click="closeDialog">取 消</el-button>
          <el-button size="mini" type="primary" @click="confirmAdd">确 定</el-button>
        </template>
      </el-dialog>
    </div>

    <!-- 分页区域 -->
    <div class="page-container">
      <el-pagination @current-change="pageChange" layout="total, prev, pager, next" :total="total"
        :page-size="params.pageSize" />
    </div>
  </div>
</template>

<script>
import { getEnterpriseListAPI, delExterpriseAPI, getRentBuildListAPI, createRentAPI, uploadAPI, getRentListAPI, outRentAPI, delRentAPI } from '@/api/enterprise'
export default {
  name: 'Building',
  data() {
    return {
      exterpriseList: [],//企业列表
      params: {// 请求参数: 分页,单页数据量
        page: 1,
        pageSize: 6,
        name: '',//name作为查询字段
      },
      total: 0,// 数据总条数
      rentDialogVisible: false,// 是否显示创建合同弹窗框
      expandedRowIds: new Set(), // 存储展开的行ID
      //合同表单属性
      rentForm: {
        buildingId: null, // 楼宇id
        contractId: null, // 合同id
        contractUrl: '', // 合同Url
        enterpriseId: null, // 企业名称
        type: 0, // 合同类型
        rentTime: [] // 合同时间
      },
      buildList: [],// 楼宇列表
      //合同验证规则
      rentRules: {
        buildingId: [
          { required: true, message: '请选择楼宇', trigger: 'change' }
        ],
        rentTime: [
          { required: true, message: '请选择租赁日期', trigger: 'change' }
        ],
        contractId: [
          { required: true, message: '请上传合同文件' }
        ]
      },
    }
  },
  // 组件挂载完毕时获取企业列表
  created() {
    this.getExterpriseList()
  },
  methods: {
    // 获取企业列表
    async getExterpriseList() {
      const res = await getEnterpriseListAPI(this.params)
      this.exterpriseList = res.data.rows.map((item) => {
        return {
          ...item,
          rentList: item.rentList || []
        }
      })
      this.total = res.data.total
      
      // 恢复展开状态
      this.$nextTick(() => {
        this.exterpriseList.forEach(item => {
          if (this.expandedRowIds.has(item.id)) {
            this.$refs.table.toggleRowExpansion(item, true)
          }
        })
      })
    },
    // 监听页码改变实现翻页
    pageChange(page) {
      this.params.page = page
      this.getExterpriseList()
    },
    // 准备查询后调方法
    doSearch() {
      this.params.page = 1
      this.getExterpriseList()
    },
    // 编辑跳转到编辑页面(Add)
    editRent(id) {
      this.$router.push({
        path: '/exterpriseAdd',
        query: {
          id
        }
      })
    },
    //删除企业
    delExterprise(id) {
      this.$confirm('确认删除该企业吗?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        await delExterpriseAPI(id)
        this.getExterpriseList()
        this.$message({
          type: 'success',
          message: '删除成功!'
        })
      })
    },
    //控制打开创建合同的弹窗
    async addRent(id) {
      this.rentDialogVisible = true
      const res = await getRentBuildListAPI()
      this.buildList = res.data
      this.rentForm.enterpriseId = id
    },
    // 关闭
    closeDialog() {
      this.rentDialogVisible = false
    },
    // 上传合同
    async uploadHandle(fileData) {
      const { file } = fileData
      const formData = new FormData()
      formData.append('file', file)
      formData.append('type', 'contract')
      const res = await uploadAPI(formData)
      const { id, url } = res.data
      this.rentForm.contractId = id
      this.rentForm.contractUrl = url
      this.$refs.addForm.validate('contractId')
    },
    // 确认提交创建的合同
    confirmAdd() {
      this.$refs.addForm.validate(async valid => {
        if (valid) {
          const { buildingId, contractId, contractUrl, enterpriseId, type } = this.rentForm
          await createRentAPI({
            buildingId, contractId, contractUrl, enterpriseId, type,
            startTime: this.rentForm.rentTime[0],
            endTime: this.rentForm.rentTime[1]
          })
          this.getExterpriseList()
          this.rentDialogVisible = false
        }
      })
    },
    // 监听展开状态变化
    async expandHandle(row, rows) {
      if (rows.length > 0) {
        this.expandedRowIds.add(row.id)
        const res = await getRentListAPI(row.id)
        row.rentList = res.data
      } else {
        this.expandedRowIds.delete(row.id)
      }
    },
    // 格式化tag类型
    formatInfoType(status) {
      const MAP = {
        0: 'warning',
        1: 'success',
        2: 'info',
        3: 'danger'
      }
      return MAP[status]
    },
    // 格式化status
    formatStatus(type) {
      const TYPEMAP = {
        0: '待生效',
        1: '生效中',
        2: '已到期',
        3: '已退租'
      }
      return TYPEMAP[type]
    },
    // 刷新指定行的租赁数据
    async refreshRentData(enterpriseId) {
      const index = this.exterpriseList.findIndex(item => item.id === enterpriseId)
      if (index !== -1) {
        const res = await getRentListAPI(enterpriseId)
        this.$set(this.exterpriseList[index], 'rentList', res.data)
      }
    },
    //修改合同的状态：0待生效，1生效中，2已到期，3已退租，需发请求
    async outRent(rentId) {
      try {
        await this.$confirm('确认退租吗?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        })
        
        await outRentAPI(rentId)
        const enterprise = this.exterpriseList.find(item => 
          item.rentList.some(rent => rent.id === rentId)
        )
        if (enterprise) {
          await this.refreshRentData(enterprise.id)
        }
        this.$message({
          type: 'success',
          message: '退租成功!'
        })
      } catch (error) {
        if (error !== 'cancel') {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        }
      }
    },
    async delRent(rentId) {
      try {
        await this.$confirm('确认删除吗?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        })
        
        await delRentAPI(rentId)
        const enterprise = this.exterpriseList.find(item => 
          item.rentList.some(rent => rent.id === rentId)
        )
        if (enterprise) {
          await this.refreshRentData(enterprise.id)
        }
        this.$message({
          type: 'success',
          message: '删除成功!'
        })
      } catch (error) {
        if (error !== 'cancel') {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        }
      }
    }
  },
  watch: {// 监听搜索框的输入：当输入框从有变为空时，更新为全部列表
    'params.name': {
      handler(newVal) {
        if (newVal === '') {
          this.doSearch()
        }
      },
      immediate: true//立即执行
    }
  },
}
</script>

<style lang="scss" scoped>
.department-container {
  padding: 10px;
}

.search-container {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgb(237, 237, 237, .9);
  padding-bottom: 20px;

  .search-label {
    width: 100px;
  }

  .search-main {
    width: 220px;
    margin-right: 10px;
  }
}

.create-container {
  margin: 10px 0px;
}

.page-container {
  padding: 4px 0px;
  text-align: right;
}

.form-container {
  padding: 0px 80px;
}
</style>
